21=7(v-2)

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Solution for 21=7(v-2) equation: 



21=7(v-2)

We move all terms to the left:

21-(7(v-2))=0



We calculate terms in parentheses: -(7(v-2)), so:

7(v-2)

We multiply parentheses

7v-14

Back to the equation:

-(7v-14)



We get rid of parentheses

-7v+14+21=0

We add all the numbers together, and all the variables

-7v+35=0

We move all terms containing v to the left, all other terms to the right

-7v=-35

v=-35/-7

v=+5

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